Car getting hot and shutting off while driving.

[bcox1600]

So I've been having a problem recently with my 93 hatch. I'll be driving and as I come to a stop the motor will just die and turn off. It'll start right up but I'm having trouble trying to find out what it is. The temp gauge started getting spunky recently and won't read accurately. Today once I got home I popped the hood and it was really hot. My car shut off at a stop light and took it a few tries to get it goin. I'm pretty sure it has to do something with coolant or something related to that but I'm not sure.

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